EP2534349A1 - Dispositif d'actionnement pour une soupape, en particulier une soupape de décharge d'un turbocompresseur à gaz d'échappement - Google Patents

Dispositif d'actionnement pour une soupape, en particulier une soupape de décharge d'un turbocompresseur à gaz d'échappement

Info

Publication number
EP2534349A1
EP2534349A1 EP10788256A EP10788256A EP2534349A1 EP 2534349 A1 EP2534349 A1 EP 2534349A1 EP 10788256 A EP10788256 A EP 10788256A EP 10788256 A EP10788256 A EP 10788256A EP 2534349 A1 EP2534349 A1 EP 2534349A1
Authority
EP
European Patent Office
Prior art keywords
valve
actuating device
valve element
contact surfaces
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10788256A
Other languages
German (de)
English (en)
Inventor
Jaroslaw Kierat
Hermann Burmester
Christian Winter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Charging Systems International GmbH
Original Assignee
IHI Charging Systems International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IHI Charging Systems International GmbH filed Critical IHI Charging Systems International GmbH
Publication of EP2534349A1 publication Critical patent/EP2534349A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • Actuation device for a valve in particular a waste gate
  • the invention relates to an actuating device for a valve, in particular a waste gate of an exhaust gas turbocharger specified in the preamble of claim 1.
  • Exhaust gas turbocharger of an internal combustion engine wherein the exhaust control flap valve has a pivot arm and a valve disc arranged thereon, which at a
  • Bypass opening in a turbine housing of the exhaust gas turbocharger for closing the bypass opening can be brought into abutment and to open the bypass opening can be lifted off.
  • the exhaust control flap valve is pivotable by means of an actuating device, wherein the arrangement of the valve disk on the pivot arm is such that the valve disk is angularly adjustable relative to the bypass opening.
  • the contact region between the swivel arm and the valve disk is formed by an outer surface and an inner surface of a spherical cap.
  • the known exhaust control valve has a high wear, whereby the risk of failure of the exhaust control valve increases. It is therefore the task of
  • Present invention to provide an actuator for a valve, in particular a waste gate of an exhaust gas turbocharger, which has a high
  • An actuator according to the invention for a valve for a valve, in particular a wastegate, an exhaust gas turbocharger, with a lever element and a via the Lever element adjustable and a sealing surface for sealing a
  • the actuator according to the invention now allows movement and thus an angle compensation in the form of a pivoting, as the contact surfaces can lie along each other, so that the valve seals the through hole very efficiently and can compensate for manufacturing tolerances, deposits or the like, the tight fit of the valve element on a corresponding valve seat for sealing the passage opening could adversely affect.
  • This movement or the angle compensation now takes place around the center common to the contact surfaces and all forces acting on the example by a valve disc of the valve element and the valve element itself forces, in particular closing forces, generate a torque around them. If the center is now essentially on the sealing surface
  • the actuating device according to the invention thus provides a joint for the Valve element ready through which manufacturing tolerances and deposits
  • the actuating device according to the invention has a high
  • the actuator according to the invention has a very good noise behavior, since noises due to relative movements of the elements of the actuator are at least almost avoided, due to the mentioned minimum relative play. This has a positive effect on a ride comfort of a motor vehicle with an exhaust gas turbocharger with the actuating device according to the invention, wherein the actuating device generates no unpleasant for the occupant of the motor vehicle perceptible noise.
  • Fig. 1 is a sectional view of an embodiment of the invention
  • FIG. 2 is a sectional view of another embodiment of the actuator according to the invention.
  • Fig. 3 is a sectional view of another embodiment of the actuator according to the invention.
  • FIG. 4 shows a sectional view of a further embodiment of the actuating device according to the invention.
  • Fig. 5 is a plan view of another embodiment of the invention.
  • Fig. 1 shows an actuator 10 for a waste gate of a
  • Exhaust gas turbocharger by means of which the pressure of a turbine wheel of a turbine of the exhaust gas turbocharger can be controlled.
  • the actuating device 10 comprises for this purpose a lever element 12, as well as a valve element 14, which is adjustable via the lever element 12.
  • the valve element 14 has a sealing surface 16, with which it can seal a passage opening.
  • Umströmungskanal at least partially closed or at least
  • the lever member 12 and the valve member 14 also act on respective, with respect to a plane perpendicular to the axial direction according to a directional arrow 18 of the valve member 14 curved contact surfaces 20 and 22 together, creating a kind of ball joint is created, through which the valve member 14 is a pivoting movement to perform the angle compensation and thus to compensate for manufacturing tolerances and / or deposits on a corresponding valve seat.
  • a position of the valve element 14 is shown, in which the valve element 14 has a zero position and is not moved or pivoted for angular compensation.
  • valve element 14 is connected via a connecting element in the form of a disk 32, which is connected by riveting and / or welding to the valve element 14 or its pin 28.
  • a connecting element in the form of a disk 32, which is connected by riveting and / or welding to the valve element 14 or its pin 28.
  • Directional arrow 18 also represents the disc 32 in a direction opposite to this a counter stop, whereby the actuator 10 has minimal relative play.
  • the disk 32 and the lever element 12 also act together via contact surfaces 34 and 36 that are curved away from the sealing surface 16. It should be noted that in addition to the curved configuration of the disc 32 shown in FIG. 1, a roof shape derselbigen is possible, whereby a tangential line contact between the disc 32 and the lever member 12 is shown.
  • the disc 32 When mounting the actuator 10, for example, the disc 32 is mounted without play on the pin 28 of the valve element 14 and by means of
  • FIG. 2 shows an alternative exemplary embodiment of the actuating device 10, wherein what was said about the actuating device 10 according to FIG.
  • Lever element 12 is connected, wherein the connecting pin 38 separately from the
  • Valve element 14 is formed and both the through hole 26 of the
  • Lever element 12 penetrates as well as into a corresponding receiving opening of the valve element 14 projects into it.
  • the valve element 14 with the
  • Connecting bolts 38 for example riveted and / or welded.
  • FIG. 3 shows a further alternative exemplary embodiment of the actuating device 10, wherein the statements made regarding the actuating devices 10 of FIGS. 1 and 2 apply analogously to the actuating device 10 according to FIG. 3.
  • the valve element 14 now has the pin 28, with which it is integrally formed.
  • the pin 28 projects beyond the passage opening 26 of the lever member 12 in the radial direction according to the direction arrow 18 away from the sealing surface 16 clearly and provides a receptacle in the form of a groove 40 in which the disc 32 is received.
  • valve element 14 is in turn welded to the disc 32 and / or riveted to represent a corresponding counter-stop.
  • the contact surfaces 20 and 22 are now arched over to the sealing surface 16, while the contact surfaces 34 and 36 are arched away from the sealing surface 16 and arranged concentrically with each other, wherein the common center 30 at least substantially on the sealing surface 16 is arranged to illustrate the low wear, the high reliability and low clearance to avoid rattling noises.
  • the lever element 12 cooperate via respective contact surfaces 42 and 44, wherein the contact surface 44 of the lever member 12 is curved with respect to a plane perpendicular to the radial direction according to a directional arrow 46 of the valve member, wherein the contact surface 44 to the Pin 28 and thus is arched out to the valve member 14.
  • 4 shows a further exemplary embodiment of the actuating device 10 according to the invention, produced here in a pressure welding method. in the
  • the pin 28 designed only partially penetrating.
  • the pin 28 is pressed with the valve element 14 and welded or soldered.
  • FIGS 5, 6, 7 and 8 are views and sections of another
  • Embodiment of the actuator 10 according to the invention can be seen.
  • the actuating device 10 has a circular valve element 14, which is connected by means of an ellipse-shaped connecting bolt 38 on its surface.
  • the valve member 14 completely penetrating portion of the connecting bolt 38 along its longitudinal axis is circular, while the lever member 12 is connected to the valve member 14 connecting portion of the connecting pin 38 is elliptical over its circumference.
  • This embodiment which is one of a spherical cap
  • Valve element 14 - which can lead to noise and wear due to friction - are provided further device elements, which can be dispensed with in this embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

La présente invention concerne un dispositif d'actionnement (10) pour une soupape, en particulier une soupape de décharge, d'un turbocompresseur à gaz d'échappement, ledit dispositif d'actionnement étant doté d'un élément de levier (12) et d'un élément de soupape (14) réglable par l'intermédiaire de l'élément de levier (12) et comprenant une surface d'étanchéité (16) destinée à assurer l'étanchéité d'une ouverture de passage. L'élément de levier (12) et l'élément de soupape (4) coopèrent au moins par l'intermédiaire de surfaces de contact (20, 22) respectives courbées au moins par rapport à un plan perpendiculaire à la direction axiale (18) de l'élément de soupape (14), les surfaces de contact courbées (20, 22) étant disposées de manière concentrique l'une par rapport à l'autre et un centre (30) commun aux surfaces de contact (20, 22) étant disposé au moins sensiblement à la hauteur de la surface d'étanchéité (16) de l'élément de soupape (14).
EP10788256A 2010-02-11 2010-12-04 Dispositif d'actionnement pour une soupape, en particulier une soupape de décharge d'un turbocompresseur à gaz d'échappement Withdrawn EP2534349A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010007600A DE102010007600A1 (de) 2010-02-11 2010-02-11 Betätigungseinrichtung für ein Ventil, insbesondere ein Waste-Gate eines Abgasturboladers
PCT/EP2010/007380 WO2011098105A1 (fr) 2010-02-11 2010-12-04 Dispositif d'actionnement pour une soupape, en particulier une soupape de décharge d'un turbocompresseur à gaz d'échappement

Publications (1)

Publication Number Publication Date
EP2534349A1 true EP2534349A1 (fr) 2012-12-19

Family

ID=43707903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10788256A Withdrawn EP2534349A1 (fr) 2010-02-11 2010-12-04 Dispositif d'actionnement pour une soupape, en particulier une soupape de décharge d'un turbocompresseur à gaz d'échappement

Country Status (6)

Country Link
US (1) US9145825B2 (fr)
EP (1) EP2534349A1 (fr)
JP (1) JP5787904B2 (fr)
CN (1) CN102762837B (fr)
DE (1) DE102010007600A1 (fr)
WO (1) WO2011098105A1 (fr)

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Also Published As

Publication number Publication date
US9145825B2 (en) 2015-09-29
US20120292547A1 (en) 2012-11-22
DE102010007600A1 (de) 2011-08-11
JP5787904B2 (ja) 2015-09-30
WO2011098105A1 (fr) 2011-08-18
CN102762837A (zh) 2012-10-31
JP2013519813A (ja) 2013-05-30
CN102762837B (zh) 2015-07-29

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